I've able to encode a DVD successfully using the same DVD-R previously. But I tried this movie 4 times and kept getting the same error message. I even tried using Roxio and other programs to burn the DVD files created onto the DVD... but kept getting similar error... please help... here is the log:

there is the missing part about the burner and firmware used.
but the message sounds like the typical write error, maybe the batch of media is bad, but I wait to have the burner part to have a better conclusion